Float Chamber - SANYANG INDUSTRY CO. SYM Service Manual

4. FUEL SYSTEM

FLOAT CHAMBER

Disassembly
Remove 3 mounting screws and remove the
float chamber cover.
Remove the float pin and float valve.
Checking
Check float needle valve and valve seat for
drop difference damage, wear out, dirty or
clogged.
Cautions
In case of worn out or dirt, the float needle
valve and valve seat will not tightly close
causing fuel level to increase and as a
result, fuel flooding. A worn out or dirty float
needle valve must be replaced with a new
one.
Remove main jet,slow jet, fuel amount
adjustment screw.
Cautions
Take care not to damage jets and adjust
screw.
Before removing adjustment screw, turn it
all the way down and note the number of
turns.
Do not turn adjustment screw forcefully to
avoid damaging valve seat face.
Clean jets with cleaning fluid.
Then use compressed air to blow dirt off.
Blow carburetor body passages with
compressed air.
4-8
float
float pin
float pin
float
slow jet
ount
fuel am
adjustmen
t screw
main jet
slow jet
SYM
screws× 3
float needle
valve
float pin
main jet